Yaskawa VS-616G5 Modbus Plus Communication Card - Manual (Page 74)

9-30 Examples
MSTR Transaction #1
In this example, the MSTR blocks are executed simultaneously. The Control Block registers for
the first MSTR must be loaded with the following data before the MSTR block is executed. This
MSTR reads drive status from drive #2.
CONTROL BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40680 Operation Code 0002h 0002h = Read from Multiple Registers
40681 Network Error Code 0000h The error code returned by Modbus Plus
communications
40682 Number of Registers 0010h Read from 16 consecutive registers
40683 Data Register Code F000h F000h = Drive Status Signals
40684 Routing 1 0002h Modbus Plus node address of the drive = 0002h
40685 Routing 2 0001h End of routing path = 0001h (Modbus Plus
requirement)
40686 Routing 3 0000h This routing register is not used, must be set to 0
40687 Routing 4 0000h This routing register is not used, must be set to 0
40688 Routing 5 0000h This routing register is not used, must be set to 0
The Data Block registers for the first MSTR will be filled with the following data after the MSTR is
completed.
DATA BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40690 Drive Status Signals READ RUN/STOP, FWD/REV, Drive Ready, etc.
40691 Motor Speed READ Motor Speed
40692 Torque Reference READ Torque Reference
40693 not used n/a n/a
40694 Speed Reference READ Frequency command to drive
40695 Output Frequency READ (0.1 Hz) Frequency at the drive
40696 Output Current READ Current at the output
40697 Analog Input READ Control Circuit Term 14 Input Volatge
40698 DC Bus Voltage READ (1.0 V) DC Bus voltage
40699 Fault Content 1 READ Overcurrent, Overvoltage,
40700 Fault Content 2 READ Drive Overload,
40701 Fault Content 3 READ etc.
40702 Analog Input READ Control Circuit Term 16 Input Voltage
40703 Digital Input READ Input Terminal Status
40704 Analog Input READ Control Circuit Term 13 Input Voltage
40705 not used n/a n/a